Fog-horn.



PATENTED SEPT. 4, 190e.

J. WILSON.

FOG HORN.

APPLIoATIoN FILED DB0. '1

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UNITED STATES PATENT ornron.

Specification of Letters Patent.

Patented Sept. 4, 1906.

Application filed December 7, 1904. Serial No. 235,898.

To aZZ whom llt/may concern:

Be it known that I, JAMES WILSON, ofthe city of Seattle, county of King, State of Washington, have invented new and useful mprovements in Mechanical Fog-Horns, of

which the following is a specification.

My invention relates to a mechanical foghorn operated by hand-power.

The object of my invention is to provide a new labor-saving, simple, but eflicient foghorn arranged so that it can be easily placed on any part of a boat, vessel, or other watercraft and-any other place desired, and can easily be operated by hand-power to use for fog-signaling and for other purposes of signaling made by sound, and which starts giving the signal immediately when the operator commences working and sounding continuously while in operation from the moment it is started.

My invention consists of novel features and parts and combinations of the same, as will be more readily understood by reference to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views, in whichigure l is a perspective view of the foghorn seen from outside ready for use. Fig. 2 is a plan view seen from the top, the cover of the box removed. Fig. 3 is a longitudinal section through air-compressor. Fig. l is a longitudinal section through exhaust-pipe, reed, and megaphone.

As shown in the drawings, a represents the box containing all the various parts of the foghorn except those parts of the handle t and megaphone O which are shown on top of the cZ represents the cover of the box a and is removable.

represents the rod and handle of the aircompressor. This rod is passed through the cover d` of the box a, through the center of cylinder e of the air-compressor. At the lower end of the rod l) are two circular pieces of leather n, the upper one having its upper side concave and the lower one having its lower side concave and the two having their convex sides turned toward each other, they being placed so that the air will be forced through the air-passage f when the handle is pulled up and through the air-passage lf when the handle is pushed down, thus causing a continuous flow of air to pass through the airpassages f and f from the cylinder cinto the air-chamber in the bellows g. i

represents the niegaphone, which is so made that it will not extend beyond the end of the box a. Thus the megaphone is protected by the box a. By reason of the reed 't being placed inside the box a instead of in the rear part of the megaphone on the box it gives a much larger space or length of the mega phone through which the sound is to travel.

CZ represents the cover or lid of the box a and can be unscrewed and taken oil' at pleasure.

e represents the cylinder of the air-compressor.

f and f represent air-'passages through partition Z m, connecting the air-chamber of the cylinder e with the air-chamber of the bellows g. l

g represents the bellows into which the air is forced through the air-passages f and f from the cylinder e by means of raising and lowering the rod b with pieces of leather n. Thus the bellows serves to retain and regulate the flow of air through air-passage 0.

h and h2 are spiral springs that serve to force the air to .pass from the bellows through the More than two springs can be used when desired.

t' is the reed causing the sound when the air is forced through the air-passage o from the bellows g.

Z and m are partitions that serve to brace the sides and bottom of the box a and holding the cylinder c and the bellows g in their place. One end of the bellows g is fastened to partition m.

p represents a block of wood, so arranged that it acts as a brace to make the box @strong and through which the air-pipe o passes and by which the air-pipe, o is iirmly retained. o is an air-passage connecting the bellows with the megaphone O and containing the reed '11.

a: in Figs. 3 and 2 represents valves in the top of cylinder e. x represents valves in the bottom of cylinder e.

x2 represents valves in bellows g.

To use the fog-horn, I close the box a and place the megaphone in position as shown in Fig. l. I place a hand in the handle l) and pull the rod l), having the circular pieces of leather n at the air-passage 0 on the reed t."

IOO

lower end, up and down in 11o the cylinder e. This causes the air to enter the cylinder e through the air-holes at the ends of the cylinder e, and the air being prevented from escaping through said air-holes by means of the valves and the air is forced through the air-passages f and j" into the bellows g, the air in the bellows g being prevented from rentering the air-passages f and f by reason of the valves x2. The air is forced through air-passage o by reason of y the pressure on the bellows g by the springs 7L and h2, and the air being forced through the air-passage 0 presses against and through the reed t', causing the sound that gives the signaling through the megaphone C.

I prefer to have two circular pieces of leather n in cylinder e, as shown in Fig. 3. Thus I secure a continuous flow of air into the bellows g; but a single circular piece of leather 'n can be used, if preferred.

A tube y, provided with a plug or closure, forms an opening to the cylinder by means of which oil may be admitted thereto and the cylinder kept in properly-lubricated condition.

Having thus described my invention, I

claim as new and desire to secure by Letters Patente l. A fog-horn comprising a box having a removable cover, a double partition in the box, a block acting as a brace to the partition, a bellows secured to the partition, springs for compressing the bellows, an airfor admitting cylinder on the opposite side of the partition and a piston in said cylinder provided with a handle, inlet-valves at the top and bottom of the cylinder, valved passages through the partition to admit air to the bellows, means oil to the cylinder, an outletpipe leading from the bellows through the partition and block, sound-producing means in the outlet-pipe and a megaphone mounted on the extended end of said pipe.

2. A signaling apparatus comprising a box having a double partition therein, a bellows secured on one side of the partition, compressing-springs between the bellows and wall of the box, a cylinder on the opposite side of the partition, a bracing-block between the partition and wall of the box, a piston in the cylinder composed of circular disks of leather secured on an operating-rod,

retention-valves in the top and bottom of the cylinder, air-passages leading from the cylinder through the partition and into the bellows, retention-valves in said passages, and an oil-tube extending through the wall of the box into the cylinder.

l In testimony whereof I have hereunto signed my name to the specification, in the presence of two witnesses, the 30th day of November, A. D. 1904.

' JAMES WILSON.

Witnesses:

A. A. ANDERSON, JAMES G. Comas. 

